Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 05-12-2010, 17:19   #61
Registered User

Join Date: Feb 2008
Boat: Quorning Dragonfly 1200
Posts: 2,175
Images: 1
Back to original topic -
Originally Posted by rebel heart View Post
For anyone else who dives their own boat, what tools are you using to keep the prop clean? I started diving my boat a few months ago and have the hull more or less figured out and can do all my zincs without dropping hardware (that took some iterations of learning).

The prop is pretty nasty right now, so I figure I'll need to go at it with a rotary sander of some type to blast the crap off when it's out of the water next. Once that's done and I drop it back in, what's the proper technique for under water preventive maintenance?

I drop in once a month or so.
I keep my boat in a very nitrogen-rich (high growth) area (western Long Island Sound). In recent 3 years I used Pettit Prop Koat with good results on the blades but poor success on the hub and shaft. This year I used the Prop Koat again but used Pettit Vivid on the hub and shaft. Results were very good.

The PropKoat is a bit pricey but will last years. I have a large 3-blade prop (19-inch diameter) and after 4 years I haven''t even used 1/4 of the can.

Only minor growth -- a few small barnacles easily popped off by a finger when diving with a snorkel. The boat is generally used at least once per week... wiped for slime about once per month starting around July 1. The boat is hauled for winters.

As for cleaning -- a metal scraper is the way to go. In past years when I had a lot of barnacles on the shaft I would use a construction pry bar called a "Wonder Bar". It has a scraper on each end but is much longer than a painter's scraper or putty knife so it keeps hands away from the sharp barnacles while scraping, and the side edges are rounded so they are fairly smooth. The Wonder Bar has enough mass so it plows right through even large barnacles and destroys them. You can run the smooth rounded side edge back and forth along a barnacle-encrusted shaft and simply crush them as the bar passes. Of course, a tool with this mass must be used with restraint to avoid damage, and that means it's easier to clean barnacles with it than a lighter scraper. No hammering or even hard tapping needed!

SailFastTri is offline   Reply With Quote
Old 05-12-2010, 22:49   #62
Do… or do not
s/v Jedi's Avatar

Cruisers Forum Supporter

Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 9,225
I think the rigid metal 10-in-1 scrapers work great for max-props etc while they are probably the wrong tool for a fixed prop.. because those have much more curves.


s/v Jedi is offline   Reply With Quote

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Prop Zinc Is Gone and Now I Have White Spots on the Prop dubhouse Propellers & Drive Systems 21 01-12-2010 13:59
Best Tool for Cleaning the Prop? Fishman_Tx Propellers & Drive Systems 15 02-09-2009 19:34
Rainwater Collection Methods Nauti-Ness General Sailing Forum 7 26-07-2009 15:14
Cat recommendation - Construction Methods, longevity and price adampyfrom Multihull Sailboats 14 22-08-2008 02:08

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 09:25.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.